Style Change: NULL->nullptr

src/core/SkDiscardableMemory.h

Index: src/core/SkDiscardableMemory.h
diff --git a/src/core/SkDiscardableMemory.h b/src/core/SkDiscardableMemory.h
index f3159fe2af0c46261814b84a65d4ac020216c7b3..8952b8df7f2df882495f0300aba4d3a897fa6886 100644
--- a/src/core/SkDiscardableMemory.h
+++ b/src/core/SkDiscardableMemory.h
@@ -19,13 +19,13 @@ class SK_API SkDiscardableMemory {
 public:
     /**
      *  Factory method that creates, initializes and locks an SkDiscardableMemory
-     *  object. If either of these steps fails, a NULL pointer will be returned.
+     *  object. If either of these steps fails, a nullptr pointer will be returned.
      */
     static SkDiscardableMemory* Create(size_t bytes);
 
     /**
      *  Factory class that creates, initializes and locks an SkDiscardableMemory
-     *  object. If either of these steps fails, a NULL pointer will be returned.
+     *  object. If either of these steps fails, a nullptr pointer will be returned.
      */
     class Factory : public SkRefCnt {
     public: